html,body,#root{
    padding: 0;
    margin: 0;
    width: 100vw;
    height: 100vh;
}
.app {
  width: 750px;
  height: 200px;
  background: #f27a7a;
  color: #ffffff;
  line-height: 200px;
  text-align: center;
}
